enflag = r'izwhroz""w"v.K".Ni'
key = 18
flag = ""
counter = 1

for i in range(0,18,3):
	ascii_1 = ord(enflag[i])
	ascii_2 = ord(enflag[i+1])
	ascii_3 = ord(enflag[i+2])
	flag += chr((ascii_1 ^ key) - 6)
	flag += chr((ascii_2 ^ key) + 6)
	flag += chr(ascii_3 ^ key ^ 6)

print(flag)